The research results on the development of grain energy bars are given. The experimental plan for the mixtures was used to create the grain energy bars with prebiotic properties. Inulin, oligofructose and gum-arabic were selected as prebiotic ingredients, which were added to the binding syrup, and subsequently to cereals and fruits. Grain energy bars were analyzed by quantitative descriptive analysis and the best formulae were determined according to the preference test. It was found that the gum-arabic was responsible for the influence on the appearance of cereal flake dryness, hardness and chewability, while the oligofructosis increased the color brightness and the crunch when bitten. The optimized composition of the grain energy bar sample showed that the fiber mixture gave the bars better texture characteristics than each fiber individually. The viscosity of the syrup, which is strongly influenced by the gum-arabic concentration, had a negative correlation with the consumer preference assessment. The selected recipe of the grain energy bar allows to reduce energy value by 18-20% with simultaneous increasing of total amount of dietary fibers by 200%.
In the past few decades, convincing evidence has shown the importance of nutrition in achieving athletic performance, and the role of carbohydrates in this process is of particular interest. The article presents data on the development of energy bars that can be used by athletes to increase endurance, both during the training period and during the competition.
The work aimed to determine the chemical composition of dry stevia leaves, as well as the effect of temperature and mechanochemical activation on organoleptic and physicochemical parameters during their processing. The studies used the methods of liquid chromatography and amperometric detection. Mechanochemical activation of dry stevia leaves was carried out in a vertical rotary-roll disintegrator. The authors describe the quantitative content of proteins, lipids, carbohydrates, dietary fibers, extractives, tannins, and ash. The paper presents the dependencies of the influence of mechanochemical activation modes on the content of diterpene glycosides and triterpene saponins and the influence of mechanochemical activation modes on the content of soluble pectin and the water-soluble fraction of proteins. The results obtained confirm the nutritional value of the product obtained after processing in a rotary-roller disintegrator and determine the prospects for its use as a source of valuable substances in the production of functional food products.
The significance of inclusion of associated dietary fibres in various amounts to the formulations of gluten-free rice test mixtures based on rheological profile of hydrated fibrous-flour composite mixtures was investigated. To assess the viscoelasticity of fiber-enriched rice-based test matrices, dual fundamental (dynamic oscillatory and creep recovery tests) and empirical (consistency and viscometric profile) rheological approaches were adopted. The obtained functional variables were analyzed for the dependence on the hydration of the dough and dietary fibres, as well as for the correlations within the parameters of both small and large deformation tests. The aqueous competition of fiber macromolecules, exhibiting different water binding and gelling capacities, led to additive, synergistic and/or antagonistic effects on the basic rheological properties.
Зерновые энергетические батончики, пользующиеся большим спросом у потребителей, удобны для введения в рацион полезных для здоровья питательных веществ и функциональных соединений. Исследовано влияние базовых компонентов – взорванных зерен риса, амаранта и киноа на содержание белка, жира, общего пищевого волокна, показатели твердости и общей приемлемости в зерновых энергетических батончиках. Установлено, что содержание белка и жира в образцах батончиков повышалось по мере увеличения в их составе доли зерен киноа и амаранта. Повышение содержания жира привело к снижению содержания углеводов в составе зерновых батончиков. Образцы изготовленных батончиков в зависимости от соотношения зерновых компонентов могут содержать до 7,76% клетчатки, что позволяет классифицировать такое изделие как функциональный пребиотический продукт. Добавление волокнистых ингредиентов влияет на текстуру продукта, повышает твердость, улучшая жевательность и адгезию. Показатель общей приемлемости изготовленных образцов зерновых батончиков варьировал от 5 до 7,9 баллов при 9-балльной оценке. Самую высокую оценку получил образец с равным содержанием в рецептуре взорванных зерен киноа, амаранта и риса, а также отмечены образцы с более высоким содержанием (66,67%) взорванных зерен киноа и амаранта. Grain energy bars, which are in high demand among consumers, are convenient for introducing healthy nutrients and functional compounds into the diet. The influence of the basic components – blasted rice grains, amaranth and quinoa on the protein, fat content, total dietary fiber, hardness, and overall acceptability in grain energy bars was studied. It was found that the content of protein and fat in the samples of bars increased as the proportion of quinoa and amaranth grains in their composition increased. The increase in fat content led to a decrease in the carbohydrate content of cereal bars. Samples of manufactured bars, depending on the ratio of grain components, can contain up to 7,76% fiber, which allows us to classify such a product as a functional prebiotic product. The addition of fibrous ingredients affects the texture of the product, improving the hardness, chewiness and adhesion. The overall acceptability of the manufactured samples of grain bars ranged from 5 to 7,9 points with a 9-point rating. The highest rating was given to a sample with an equal content of exploded quinoa, amaranth and rice grains in the formulation, and samples with a higher content (66,67%) of exploded quinoa and amaranth grains were also noted.
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